The Cannes Film Festival is coming under scrutiny for banning flats on the red carpet.

The controversial rule was brought to light when red carpet guards reportedly turned away a film producer, whose left foot is partially amputated, due to her footwear, according to the BBC.

Asked about the flats fall-out, A-list star Emily Blunt told Variety: "I think everyone should wear flats, to be honest. We shouldn’t wear high heels anymore. That’s just my point of view. I prefer to wear Converse sneakers."

Although festival organizers deny heels are a requirement, others have come forward this month on social media. Asif Kapadia, who premiered his documentary on Amy Winehouse in Cannes, said his wife was initially banned (but then "let in") from the carpet.

Three sets of flats on the @Festival_Cannes red carpet in 2011. Come on. Do you force Harvey Weinstein to wear Spanx? pic.twitter.com/edHjuN4cXc

— Farran Nehme (@selfstyledsiren) May 19, 2015

Naturally, #flatgate took off on social media, with film critic Farran Nehme posting a collage of recent actresses - Uma Thurman, Ines de la Fressange and Elizabeth Olsen - in three red-carpet ready flat sandals, as well as a throwback to the original style icon, Audrey Hepburn, in a petite pair of heels. 

What do you think? Should flats be banned or applauded at Cannes? Tweet us @CobblerStyle

See also: Met Ball 2015: Accessories on the Red Carpet